The battery charger circuit below is very simple to build requiring only a handful of cheap parts and an extra winding on your power tranny (or a separate tranny). Since the charger described is not active during sound reproduction, I have made no criteria on parts quality, so el-cheapo was the way to go. There [...]
digital+rain+alarm
With the astonishingly rapid growth in the market for flat-screen TVs and high-definition TV, many CRT television sets have been consigned to the attic, even though many of them were still working perfectly and could have been used as spare sets in a bedroom or another room, for example. Although all current flat-screen receivers have [...]
The easy way to power your projects Here is the circuit diagram of regulated power supply. It is a small power supply that provides a regulated voltage, adjustable between 1.5 and 35 volts at 1 ampere. This circuit is ready to use, you just need to add a suitable transformer. This circuit is thermal overload [...]
Home security project Securiy is a matter of great concern to all of us in this world. Normally there are four types of security threat to our property.
With aloof eight genitalia and a battery, the accouterments can hardly be simpler. Ambit access is a aftereffect advancing beeline from the akin of affiliation of its capital components. The temperature sensor IC is either a DS1621 or DS1631 (Maxim). This 8-pinner includes a complete agenda temperature sensor/thermostat with I2C output. With the adapted commands, [...]
